GLM-5 (which is all I have access to on it, not the newer GLM-5.1) is slightly better for the coding tasks I'm using them for, in terms of being more accurate slightly more often. Both are very good, and very close to one another in practice

Qwen3.5-plus is also quite excellent: all of these models feel pretty similar to Sonnet 4.5 in practice, though GLM-5 can have "Opus" like reasoning through surprisingly long context chains I've found.